2D/3D heterojunction engineering at the buried interface towards high-performance inverted methylammonium-free perovskite solar cells

Haiyun Li, Cong Zhang, Cheng Gong, Daliang Zhang, Hong Zhang, Qixin Zhuang, Xuemeng Yu, Shaokuan Gong, Xihan Chen, Jiabao Yang, Xuanhua Li, Ru Li, Jingwei Li, Jinfei Zhou, Hua Yang, Qianqian Lin, Junhao Chu, Michael Grätzel, Jiangzhao Chen, Zhigang Zang